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Identify your MacBook Pro model - Apple Support
macOS 10.13, High Sierra MacBook Pro 2009 Released for sale | eBay
Identify your MacBook Pro model - Apple Support (SG)
Installing MacOS Sierra on an unsupported Mac (2009 MacBook Pro 5,4) - YouTube
macOS High Sierra (10.13) Unsupported Macs Thread | MacRumors Forums
macOS High Sierra Patcher
Should I upgrade my mid-2012 MacBook Pro to macOS High Sierra? - Quora
Restored Apple Macbook Pro 13.3-inch (Retina) 2.7Ghz Dual Core i5 (Early 2015) MF839LL/A 128GB SSD 8 GB Memory 2560x1600 Display Mac OS X v10.12 Sierra Power Adapter Included (Refurbished) - Walmart.com
For all of the ten people that care, I installed High Sierra On a mid 2009 MacBook Pro : r/mac
Identify your MacBook Pro model - Apple Support
Identify your MacBook Pro model - Apple Support
macOS Sierra | Low End Mac
15″ MacBook Pro (Mid 2009) | Low End Mac
macOS Sierra Patch Tool
The MacOS Sierra Compatibility List | OSXDaily
Apple Macbook pro mid 2009 120gb ssd 4gb ram MacOS High Sierra for Sale in Lowell, MA - OfferUp
How to Upgrade to macOS High Sierra
PSA: macOS Sierra drops support for many Macs from 2007, 2008, and 2009 | Ars Technica
SOLVED: I want to upgrade my MacBook Pro(mid 2009) to the highest - MacBook Pro 13" Unibody Mid 2009 - iFixit
macOS 10.12 Sierra Unsupported Macs Thread | MacRumors Forums
Apple MacBook Pro (Mid 2009) 15" Core 2 Duo 2.8GHz 8GB RAM 250GB HDD | eBay
Another Japanese MBP saved from trash. 2009 mid. : r/macbookpro